Gas-burner.



'No. 633,259. Patented Sept. I9, 1899. W. E. BOBRAEM.

GAS BURNER.

lApplication filed June 30, 1898.

(No Model.)

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UNITED STATES PATENT OFFICE.

WILLIAM E. BOORAEM, OF NEW YORK, N. Y.

GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 633,259, datedSeptember 19, 1899.

Application filed June 30,1898. Serial No. 684,897. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM E. BooRAEM, acitizen of the United States,residingin New York, in the county of New York and State of New York,have invented a new and useful Improvement in Gas-Burners, of which thefollowing is a specification.

This invention relates generally to gasbnrners, and more particularly toa construction adapted to prevent the escape of gas in case the lightshould become extinguished in an accidental or improper manner.

Another object of the invention is to provide for a limited passage ofgas to the burner in order that it. can be lighted in the proper manner.With these various objects in view the invention consists in thepeculiar construction of the Various parts and in their novelcombination and arrangement, all of which will be fully describedhereinafter and pointed out in the claims.

In the drawings, Figure l is a longitudinal view, partly in section, theburner proper being omitted. Fig. 2 is an elevation of the cone-valve A,showing the groove which permits a small amount of gas to escape whensaid valve is closed.

In carrying out my invention I employ an outer shell or cylinder b,threaded at its lower end, as shown at g, for connections to thesupply-pipe, and at its upper end the said shell is arched ordome-shaped and provided with a central opening for the attachment of anordinary burner. A block or longitudinal body 0 is secured in the outershell (2 by having its lower end threaded into the lower threaded end ofthe shell I), and this cylindrical block or body is formed with avertical passage-way it, through which the gas passes, and a conical orneedle-shaped valve a is located in the upper end of this passage-wayfor the purpose of cutting 01? the supply of gas whenever the lightbecomes extinguished said valve being connected to a block a, whichcarries a plunger h, located in one branch of a U-shaped passage-way e,produced in the block or body portion a reservoir (Z being secured inthe opposite branch, said reservoir consisting, essentially, of a tubehaving a bulb d at the upper end, which is'located adjacent to. thedome-shaped top of the shell I). The U-shaped passage-way is filled to adefinite extent with mercury or other expansible material. The cone orneedle shaped valve Ct is provided with a slight groove or recess 1' topermit a limited amount of gas to always pass through the passage 70 tothe burner in order that the said burnercan be lighted whenever desired;but the amount of gas which escapes in this manner is not sufficient toprove injurious.

As soon as the burner is lighted the heat from the flame actsimmediately upon the air or other expansive fluid within the reservoirand in turn upon the expansive fluid contained in the U -shaped passageand the plunger is elevated, which of course elevates the valve andpermits a free passage of the gas to the burner. The moment the flamebecomes extinguished the heat therefrom ceases and the expansive fluidsimmediately contract and the plunger descends, carrying with it thevalve and closing the upper end of the passage 7t, except by the groove2'.

It will thus be seen that I provide an exceedingly simple and efticientmeans for automatically cutting oi the flow of gas in case the flamebecomes accidentally extinguished.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent of the United States, is-- 1. Agas-burner comprising a shell to which the burner is attached, a body orblock located in said shell and havinga passage-way for the gas, avalvelocated at the end of said passage, a U-shaped passage having a plungerlocated in one branch and connected'to the valve, and a reservoirconnected to the opposite branch of the U shaped passage, and theexpansive fluid or fluids contained within the U-shaped passage,substantially as shown and described.

,2. In a gas-burner, the combination with a shell, of a block orcylindrical body within the said shell, and having a straight passageand cone-valve, substantially as and for the purpose described.

New York, N. Y., June 29, 1898.

WILLIAM E. BOORAEM.

In presence of- JAMES J. BRENNAN, THOMAS BRENNAN.

